Table 1.

Experimental Design Showing Assignment of Layer Chicken Groups

Group No	Experimental Groups	No of Birds	Vaccination	Challenge (DPV 63/DPC 0)
			1st Dose (DPV 0)
			2nd Dose (DPV 21)
			3rd Dose (DPV 42)
1	Mock	9	PBS	PBS
2	Mock + Ch.	10	PBS	S. enteritidis
3	OMPs and F-protein +Ch.	10	OMPs + F-protein	S. enteritidis
4	OMPs-F-CS NPs + Ch.	10	OMPs-F-CS NPs	S. enteritidis

Abbreviations: DPV, Day Post-Vaccination; DPC, Day Post-Challenge; Ch, Challenge; OMPs, Outer Membrane Proteins; F, Flagellin Protein; CS NPs, Chitosan Nanoparticles; OMPs-F-CS NPs, OMPs and F-Protein Entrapped and Surface F-Protein Coated CS NPs.